English
rusticle
Blend of rust + icicle, coined by Robert Ballard, who first observed them on the wreck of the Titanic in 1986.
The story
Blend of rust + icicle, coined by Robert Ballard, who first observed them on the wreck of the Titanic in 1986.
Today it means
noun An icicle-shaped rust formation, formed on shipwrecks etc. by underwater microbes that consume iron.
Sources
Sources: Wiktionary, “rusticle”. By Wiktionary contributors, CC BY-SA 4.0, via kaikki.org (dump of Oct 3 2026); text adapted and restructured. Language periods are conventional ranges, not dates for this word. License.
Etymograph / rusticle